Metal furniture



W. MGARTHUR METAL FURNITURE July 6, 1943.

Filed April 22, 1942 vill/m11;

INVENTOR Patented July 6, 1943 y METAL FURNITURE VWarren McArthur, New York, N. Y., assignor to Warren McArthur Corporation, a corporation o! New York Application April 22, 1 942, Serial No. 439,983

(Cl. 287-54.)A

o This invention relates to metal furniture and more particularly to an improved construction of joint between frame members or the like having diierent cross sectional congurations.

In the manufacture oi light weight metal furniture, tubular frame members formed, for example, from relatively light gauge aluminum tubing are largely employed. At the same time, other structural members in the shape of angles, sheets, bars or the like are also used and it is necessary to connect together these members of different shape with a suitable joint. n

An object of this invention is to provide an improved construction for metal furniture arranged to connect together frame members of dierent cross sectional configurations, while providing anished, attractive appearance.

A further object is to provide an improved conf necting member for use in securing together frame members of dierent cross sectional conngurations.

These and other objects which will be apparent to those skilled in the art are accomplished by this invention, one embodiment of which is illustrated in the accom drawing, in which,

Fig. 1 is an elevation of part of a seat assembly showing a joint between a side frame member of rod shape and a seat frame member o angle` form, constructed in accordance with one embodiment of this invention,

Fig. 2 is a* partial section on the line 2-2 of Fig. 1, showing the seat frame in section,

Fig. 3 is a section on the line 3-3 oi Fig. 2,

Fig. 4 is a section on the line --S of Fig. 2, and Fig. 5 is a view similar to Fig. 4, showing the invention as employed in connecting a at bracket arm or the like to a tubular frame member.

As illustrated in Figs. 1 t0 4, the invention is,

shown as employed in securing an angle bar, forming part o! a seat -frame to a supporting tubular frame member, but it will be apparent that the vinvention is equally well adapted to frame members having other specific forms or shapes.

As illustrated, a tubular frame member I 0 is connected to and supports an angle bar II which may, vfor example, support a seat pan I2 and cushion I3.

A washer or connecting member I4 has a concave face I 5 on one side shaped to conform to and snugly engage the outer surface of the tubular frame member I. On the other side the connecting member has a flat face I6 provided with a shoulder Il extending along one side thereof. Usually, a clamping collar I8 having-a concave face i9 engages the tubular frame member which is clamped between the collar and the washer or connecting member I4, but it will be apparent that the collar is not essential to the present invention except to provide a nished appearance.

One flange 2li of the bar il` engages the .dat face I6 of the connecting member with the edge of the bar engaging the shoulder IT by which the angle is held in predetermined position withA relation to the tubular frame member. A single clamping bolt 2| extends through the flange 20, connecting member IQ, tubular frame member IG and clamping collar I8 and holds .the entire assembly together in a rigid construction. When the clamping collar I3 is provided it will be apparent that it cooperates with the connecting member I in preventing the clamping pressure from collapsing theI wall of the light gauge tubular frame member. Y

Fig. 5 shows the invention employed in securing a at bracket arm or similar member 22 to the tubular member in predetermined angular relationship. The bracket arm has a straight edge 23 adapted to engage the shoulder I'i on the connecting member t0 position the bracket arm in predetermined relationship to the tubular frame member.

It will be apparent that the present invention is independent of the particular shape of frame member employed and is equally well adapted to other shapes than those illustrated. Obviously, the invention can be variously modied and adapted within the scope of the appended claims.

I claim:

1. The combination in an article of furniture, of a rod-shaped frame member, a second frame member, vmeans for securing said frame members together comprising a connecting member having a concave face on one side conforming to and engaging said rod-shaped member, and a dat, shouldered face on the other side engaging said secondirame member with the shoulder thereof engaging an edge of said second frame member, and means extending through said frame members and said connecting member for clamping said members together. l

2. The combination in an article of furniture, of a rod-shaped frame member, a second frame member of angular cross-section. means for securing said frame members together comprising an intermediate connecting member having a concave face on one side engaging said rodshaped member, and a shouldered face/on the curing said frame members other side engaging said second frame member with the shoulder thereof in engagement with an edge of said second frame member to position said second frame member in predetermined relation to said rod-shaped member, and means extending through said frame members and said connecting member for clamping said members together.

3. The combination in an article of furniture, of a tubular frame member, an angle bar forming a second trame member, means for setogether comprising a connecting member having a semi-cylindrical concave face on one side conforming to and engaging said tubular member, and a at face on the other side engaging one ange of said angle bar, a shoulder on said connecting member extending along said at face and engaging the edge of said flange to position said angle bar in predetermined relation to said tubular frame member, and means extending through said frame members and said connecting member for clamping said members together.

4. The combination in an article of furniture, of a tubular frame member, an angie bar forming a second frame member, means for securing said frame members together comprising a connecting member having a semi-cylindrical concave face on one side conforming to and engaging said tubular member, and a nat face on the other side engaging one iiange of said angle bar, a shoulder on said connecting member extending along said fiat face and engaging the edge of said ange to position said angle bar in predetermined relation to said tubular frame member, a clamping collar cooperating with said connecting member to surround said tubular member, and means extending through said frame members, said connecting member and said collar for clamping said members and collar together.

`5. The combination in an article oi furniture, of a tubular frame member, an angle bar forming a second frame member, means for securing said frame members together comprising a connecting member having a semi-cylindrical concave taceon one side conforming to and engaging said tubular member, and a flat face on the other side engaging one flange of said angle bar, a shoulder on said connecting member extending along said fiat face, a shoulderengaging edge on said iiange adapted to position said angle bar in predetermined relation to said `tubular frame member when in engagement with said shoulder, and means extending through said frame members and said connecting member for clamping said members together.

WARREN MCARTHUR. 

